How to Use the Cal.com MCP in Google ADK

Q: How do I install the Cal.com MCP Server toolset in Google ADK?

Run pip install google-adk in your environment. Then, configure McpToolset with your Vinkius HTTP URL and pass it to your LlmAgent tools list.

Q: Can my Gemini model search for free times using Cal.com and Google ADK?

Yes, the agent calls getavailableslots to pull real-time availability. The long-context model processes these slots to find the optimal meeting time for your clients.

Q: Does Google ADK support webhook management for Cal.com events?

Yes, the agent can use listactivewebhooks to inspect your current event configurations. This helps your Google Cloud pipeline trigger downstream tasks when a meeting is booked.

Q: Can I restrict which tools are exposed to my agent?

Yes, the framework allows you to pass an optional toolnames filter to the toolset. This ensures your agent only accesses specific tools like createnewbooking while blocking administrative tools.

Connect Gemini models to your Cal.com calendar using Google ADK to analyze booking patterns and schedule meetings.

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Connect Cal.com MCP to Google ADK

Create your Vinkius account to connect Cal.com to Google ADK and route execution through our secure gateway. The platform manages server hosting, runtime updates, and security layers. Configuration requires no manual server provisioning.

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Setup Cal.com with Google ADK

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Analyze Cal.com booking data with Gemini long-context

The `list_bookings` tool retrieves your entire Cal.com meeting history to feed directly into Gemini's million-token context window. This tool allows your Google ADK agent to parse months of calendar data in a single run, finding patterns in your meeting frequency. You can join this Cal.com data with your enterprise datasets in BigQuery. The Google ADK agent uses the retrieved booking details to build custom scheduling reports without leaving your Google Cloud infrastructure.

Automate scheduling using Google ADK and Vertex AI

The `create_new_booking` tool writes new Cal.com meetings directly to your calendar when a lead confirms a time. Your Google ADK agent triggers this tool instantly during a conversation, bypassing manual input. Before booking, the Google ADK agent runs `get_available_slots` to find open Cal.com times. The Gemini model handles the reasoning, ensuring the booking respects the parameters of the specific event template.

Manage calendar templates with this Google ADK MCP Server

The `list_event_types` tool exposes your pre-configured Cal.com templates to the Gemini model. This MCP Server lets your Google ADK agent identify which meeting type fits the user's request. You configure the connection using `McpToolset` with your secure Vinkius URL. This setup allows your Google ADK agents to query `get_event_type_details` and match incoming leads to the correct Cal.com template.

Setup guide

Set up Cal.com MCP in Google ADK

Prerequisites

Python 3.10+ installed
google-adk package (pip install google-adk)
Active Vinkius subscription with a valid endpoint token

1

Install Google ADK

Run pip install google-adk to install the Agent Development Kit. MCP support is included via the McpToolset class.
2

Connect via SSE transport

Use McpToolset.from_server() with SseServerParams pointing to your Vinkius endpoint. Replace [YOUR_TOKEN_HERE] with your token from cloud.vinkius.com.
3

Create an LlmAgent

Pass the returned mcp_tools list directly to LlmAgent(tools=mcp_tools). The ADK maps each MCP tool to a native Gemini function call — no manual schema definitions required.
4

Run with any Gemini model

The agent works with any Gemini model (gemini-2.0-flash, gemini-2.5-pro, etc.). Copy the full example on the right to get started with Cal.com tools in your ADK agent.

agent.py

from google.adk.agents import LlmAgent
from google.adk.tools.mcp_tool.mcp_toolset import McpToolset
from google.adk.tools.mcp_tool.mcp_session_manager import SseServerParams

# Connect to the MCP via SSE
mcp_tools, exit_stack = await McpToolset.from_server(
    connection_params=SseServerParams(
        url="https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
    )
)

# Create your agent with auto-discovered tools
agent = LlmAgent(
    name="Cal.com_agent",
    model="gemini-2.0-flash",
    instruction="You have access to Cal.com tools via MCP.",
    tools=mcp_tools,
)

Get your connection token →

Independent Platform Disclaimer: Vinkius is an independent platform and is not affiliated with, endorsed by, sponsored by, verified by, or otherwise authorized by Cal.com. All third-party trademarks, logos, and brand names are the property of their respective owners. Their use on this website is strictly for informational purposes to identify service compatibility and interoperability.

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Common questions about Cal.com MCP in Google ADK

Run `pip install google-adk` in your environment. Then, configure `McpToolset` with your Vinkius HTTP URL and pass it to your `LlmAgent` tools list.

Yes, the agent calls `get_available_slots` to pull real-time availability. The long-context model processes these slots to find the optimal meeting time for your clients.

Yes, the agent can use `list_active_webhooks` to inspect your current event configurations. This helps your Google Cloud pipeline trigger downstream tasks when a meeting is booked.

Yes, the framework allows you to pass an optional `tool_names` filter to the toolset. This ensures your agent only accesses specific tools like `create_new_booking` while blocking administrative tools.

Your Cal.com API keys are managed securely by the Vinkius MCP hosting layer, meaning your Google ADK environment never handles raw credentials. The server runs in an ephemeral sandbox that only transmits the schedule and booking outputs.

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